Vacuum-drier.



U. S. SLEEPER.

. VACUUM DEER.

APPLIOATION rum) JUNEe, 1910. RBNBWBD MAY 12,1913.

'lg'm v Patented oct. z 1913.

6 SHEETS-SHEET l.

@.smmm u VACUUM 131111311.

APPLICATION FLBD JUNBB, 1910. RENEWBD MAY 12, 1913.

um 3J L@ M990@ melma 001;. 7, 1913.

6 SHEETS-SHEET 2.

0. S. SLEEPER. 'VACUUM DRIRE.

' APPLIGATON FILED JUNEG, 1910. RENEWED MAY 12,' 1913.

i@ 6' L@ fd.

'Patented Unt. 7, 193.

5 SHEETS-SHEET 3.

M. j@ M M m.

. S. ySLEl-PER.

.VAUM ,DRIEL APPLIUATION FILED JUNE s, 1910. RENEWED MAY 12. 1913.

Patented c. 1913.

5 SHEETS-SHEET 4.

0. S. SLEEPER.

VACUUM DRIRE.;

APPLICATION FILED JUNEG, 1910. RENBWED MAY 12, 191s,

Patented 0%.?,1913

5 SHEETS-SHEET 5.

, purl/m515 nii-md semmai', Seau-red. 0 pposrt@ .anda of the by and parfhel Gnftwfundersda of thsagemad is carried upwardly on'oneside of the drum and downwardly on the other side thereof during, which movement of the material the mo1s.

ture therein is evaporated and the solid ingredients containedA therein remain clinging` -and stopping at its upper edge vshort of4 the periphery of the drying drum, a rear longitudinal flange or wall 2 rising from the rear longitudinal edge of the bottomq and engaging with the periphery of the drum, a strip or bar i4 for reinforcing the rear wall 2 secured to the front side of the latter and the bottom and also engaging with the periphery of the drum for increasing the wearing surface, and two end flanges or' walls 3 which rise from opposite transverse edges of the bott/0m and engage at their upper edges with the periphery of the drum. The front wall 2'1 l1s preferably arrangeda reater distance' from the vertical center 0% the drum than the rear wall i2, as shown in Fig. 2. This delivery pan extends the full length or nearly so of the drum and is mounted on the rear ends of a plurality of vertically swinging rock arms J which are secured at intervals at their front ends to a horizontal rock shaft j arranged lengthwise in Athe drying chamber below the drum and journaled at its opposite ends in stuffing box bearings jl arranged on the heads of the drying chamber. Upon turning this shaft and its 'arms in one direc= tion the panmay be swung downwardly away from the drum and into a position in which the same may be thoroughly cleaned and kept in sanitary condition, while upon turning the shaft and arms in the opposite direction the pan may be swung upwardly into its operative position relatively to the drum. ,The pan may be thus raised and lowered by means of a hand lever K secured to one end of the shaft outside of the casing and the'pan is held in its operative position by means of a clamping bolt or screw 72.1 which secures the hand lever against a lug 702. on the Yadjacent head ofthe casing, as shown in Fig. 4.

Below the pan and preferably vertically in line with the axis of the drying drum is arranged a horizontalilongiti1dinal manifold which is preferably constructed of two sections L, L which are arranged in line vand each of which is connected with the undersideof the pan by a plurality of upright nipples l. The outer end of each manifold V.section L is closed by swap Z1 which is removably secured thereto so as to provide access to the interior thereof for cleaning the same.

Means are provided for supplying the manifold with the liquid material to be evaporated which'means permit ofv freely raising and lowering the pan and associated parts without disturbing thel liquid sup ly connections and are constructed as f) lows :-M represents a hollow bracket arranged transversely within the drying chamber and secured at its outer end to the front wall of the casing while its inner end is provided with a hollow cylindrical knuckle m through which the pan shifting shaft J passes concentrically. N reprethe bracket M and connected at its inner end with the interior of the knuckle thereof while its outer end is connected by a T-fitting M1 with a pipe n containing a valve nl whereby liquid from a main supply tank or reservoir may be delivered 'to the pan and also with a return pipe 132 which connects by an intermediate conduit..with a drain pipe n3 at the bottom ofthe casing whereby the liquid in the reservoir in the drying chamber ma be delivered to the pan. Upon detaching the'T-itting 'M1 from the supply pipe M the interior of the latter is accessible for cleaning the same sents a hollow swinging arm or pipe provided at its outer end with a vhollow knuckle yo1, which is arrangedv adjacentto the knuckle m and is traversed concentri- `tally by thepan shifting shaft J while its inner end is connected on its opposite sides with the inner ends of the manifold sec` tions L, L. The inner end of the swing pipe is provided with a cap 02 which is removably connected therewith so as to afford access to the interior of this pipe for cleaning the same. The opposing sides of the knuckles of the swing pipe and the bracket are connected by a rotatable'joint which permits the swing pipe to be turned rela- .tivelyto the bracket without disturbing the passage between the same, this connection consisting preferably of an annulary rib 0a formed concentrically on the respective side of the movable knuckle vo1 and engaging with a corresponding groove inthe opposshown in Figs, 6 and 10. The opposite so as to render the interior of both knuckles accessible for cleaning. The two knuckles are held in operative relation to each other and still permit the cap p to be freely at tached to or detached from the movable the pan shiftin shaft J and engaging with the outersida xed knuckle m, a cross ing side of the stationary knuckle m, as-

side of the movable knuckle 01 is closed by.4 a" cap p'which is removably secured. theretosents a liquid supply pipe extending through from the exterior of the casing. O reprev knuckle by means of a collar g secured to cent pam suppociiig mm which. zfiacfasvim v pim and range pmfai'ai with "Lim @haft J'- mioppii sit sides. of h@ csp gi and. @mii having ai screw cannecimi at @pposa Qiiis Wiiii mvabie kniidie om, @mi 0f ci'ogs bai" Q, and iam iiiiisg2 appiied sing; beit@ Ln-:i

1 Dui-ing the opemionfoi lle iii@ materiai is imoved iii-om die peipiiry of the drum by a scrapei or dccr' R which which direcs h@ sam-e im@ tha produca m ceiving Chamber iiwieby @kai-ling; thai drum preparatory t@ :ippiying aiwiiei" 120mbI` ha @peifaion @if ciicufay ing iiquifiii feeding iii@ sume to ith@ Gamm of liquid theieco, 'i

and removing tha med msiduum jpieaig continuous-31 while machin@ isl iii ii operation. EFQM?. the, pmiiiic; xmiving Chamber ik@ mai-@rial is deiivwcivvthrmigii :in outiet in iis v'Eiwri-o-i Si iii which iii@ nuit@ afi accumulata@ and ism which ii; is iemcvefi fiom mei@ tim@ is l@- sii'e. The; iempeiaui'e ih@ liquid in h@ ieseivoi C may inel maintained aib th@ dv.

siied; degree by miiiis of @blaming device compismg (foils which ale aiang'm the owei' pziwb of ik@ maf-wow C and 'iiirmigh which steam, not wai 0i' @they ii'ezimg medium may be cu'eiiiasfc-d. Access im faim interim" of #he drying Chamb@ *10i* ciemung vthe paris 'hein may UQ had iiimugi amy opening which is foi-med in @ne of the caslng heads and which 1s um'maiiy Closd by ai cover or dom; '1.. As "die diiefi pi'cduc is,

Scrapsd 'fi-om the degmiiiig side of the rum the same has the 50mi 0f large siiefsis which' am habia to 'plie up mi the rods Gf the scraper adjusfaing mechanism ami which extend ac-mss the produ@ ciivrjy' Sp0ui3v To prevent this dried Sheets 0r akes are-iaifeii up 1Mo small particles by mean; S: disiw hmmm of mi?? f suipius liquidi@ )n Miam i said Wsiii braises w casing W911i to Semp/ei', i, permitting miie giii- :mai iin; pari/ichs fm stsie in ich@ spoii ami in h@ i'eceiv# ma' lbci; Wizth ih@ imge' iwifei particfes, "iismeby-i-h@ output of iii@ machine is; iii ci'easeai accidingiy.

inasmuch' as space Wivd'iiiii die casing neaiiy cuf ifm ih@ @mausi viavia@ tim outer Waii' 0f @im Casing to is space,I in the @absence mi any provision 22o pmi/@n i@ 'Woiili ieiiiiin Gooi for smatiizi@ @fief saiing faim inzihin mid cheleby con, dans@ iie vapors-0in this wail which vapors would Nm down iii'xi iii@ ieepiiacie *fois tha (i'ied maiiai which is bjectiombie.

i s avoid his a supplemental heating devise is providefi 1n the spass between the firunfi mici di 1mg lcha-mios? Wall', Wihm the space @mi drying chamber. This supplemental or auxiliary heating means preferably comprises a plurality of pipes y which are arranged on the wall of the drying. chamber below the peripheral baille, as shown in Fig. 2, and through which steam, hot water or other heating medium may be circulated.

After the machinehas been running for a time and the space on the dry side ofthe drum adjacent to the scraper and below the baflles has become sufficiently heated, the steam may be turned oft from the pipes y inasmuch as the heat of the drum is sufficient to maintain a sufficiently high temperature to prevent condensation.

I claim as my invention:

l. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber, and `means for feeding liquid to said drum comprising a pan having a bottom, front and rear side walls arranged at opposite longitudinal edges of the bottom said front wall stopping short of the periphery of the drum while the rear wall engages the periphery of the same, and end walls arranged at the opposite transverse edges of the bottom and engaging with the periphery 4of the drum.

2. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber, and means for feeding liquid to said drum comprising a pan arranged below the drum and adapted to support the liquid in position for the lower part of the drum to dip into the same, a manifold provided with a plurality of nipples opening into said pan, and a rocking support for said pan and manifold Ahaving its axis on one side of said manifold.

3. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber, and means for feeding liquid to said drum comprising a pan arranged below the drum and adapted to support the liquid in position for the lower part of the drum to dip into the same, a manifold provided with a plurality of nipples opening into said pan, a rock shaft arranged on one side of the manifold, and a plurality of arms secured to said shaft and supporting said pan and associated parts.

4. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber,

and means for feeding liquid to said drum comprising a pan arranged below the drum and adapted to support the liquid in position for the lower part of the drum to dip into the same, a rock shaft provided with arms supporting said pan, a liquid supply conduit having a -hollow swing arm which turns concentrically with said shaft, and a manifold connected with said swing arm and having a plurality of nipples connected with said pan.

5. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber, and means for feeding liquid to said drum comprising a pan arranged below the drum and adapted to support the liquid in position for the lower part of the drum to dip into the same, a rock shaft provided with arms supporting said pan, a liquid supply conduit havinga hollow swlng arm which turns concentrically with said shaft, and a manifold having two sections which have their inner opposing ends connected with opposite sides of saidswing arm and each of which is provided with a plurality of nipples which are connected with said pan.

6. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber,

and means for feeding lliquid to said drum.

comprising a pan arranged below the drum and adapted to support the liquid in position for the lower part of the drum to dip rinto the same, a rock shaft provided with arms supporting said pan, a liquid supply conduit having a hollow swing arm which turns concentrically with said shaft, and a manifoldhaving two sections which have their inner ends connected with opposite` sides .of the swing arm while their outer endsare provided with'removable caps and each of which is provided with a. plurality of nipples whereby the same is connected with said pan.

7. A vacuum drier comprising a drying Chambera drum rotatable in said chamber, and means for feeding liquid to said drum comprising a pan arranged below the drum and adapted to support the liquid in posi- Ytion for the lower part of the drum to dip into the same, a rock shaft provided with arms supporting said pan, a liquid supply conduit having a hollow swing arm which turns .concentrically with said shaft and4 which has its'inner end provided with a removable cap, and a manifold connected with said swing arm and provided with a plurality of nipples whereby the same is con` nected with said pan.

8. A vacuum drier comprising a drying chamber', a drum rotatable in said chamber, and means for feeding liquid to said drum comprising a pan arranged belowthe drum and adapted to support the liquid in posi-v tion for the lower part of the drum to dip into the same, a rocking support for said pan, a manifold provided with a plurality of nipples connected with said pan, a stationary liquid supply pipe having a hollow knuckle, and a hollow swing arln connected with said manifold and having a knuckle which is rotatably connected with said stationary knuckle.

9. A vacuum drier comprising a drying chamber, a drum rotatable in said chamber, and means for feeding liquid to saiddrum comprising a pan arranged below the drum and adapted to support the liquid in positcm fm.' the lower pat of the drum to ip into the same, a mok shaft having ock which suppot said pan. a saonafy q'u Supply a diyLgj be' 'mail 215 to support n ,n

he owev @mrt mi? th@ @uns sama a cc sm; having; rock a Stationary d 55u. @il holow kum/15e 20 :ith Said shaft and W a by mediar on i- ,Dine i@ ving a 3:0- which engages on tafle oint- Wh 'the 2' o de, a rmnowble @am ,vhcll curses an Opening in 'the @they Sid@ 0f im@ rotatab@ knuskl@ all a, mzm- Connecting sai@ swing; pipe with Said pan.

A30 Y l. il vacuum drier commising d,'.u Chame, :1- dun ltatable in Said chamba; and mean.; for 'eenf iqud i0 said drum cmnmSr-g z pan arranged 'bsow the drum and adaple 'to suppoyt im liquid inv pimi- 35 ml Lm Fn@ 10?'01 part m The dmm to dip into bhs su '110, n sock shaft having rock mms which supp .111 pan, stntoum'y liquid side of tha gagging w' f arm which Chamb Chamfort rotaia 

